Among all wind energy generators, the amount of electrical energy generated by each rotation of the wind energy generator varies depending on the power of the wind energy generator.
For example, the most common 2MW direct-drive wind energy generator, when the wind energy is sufficient and stable, can generate 2,000 degrees of electricity every 60 minutes, and each rotation of the fan blades requires 3.5 seconds, 60 minutes, is 3600 seconds, so the electricity generated by the generator per second is 0.56 kilowatt-hours. Then the electricity generated by the fan of the wind energy generator for each rotation is 0.56 × 3.5 seconds, which is 1.94 kilowatt-hours.
Extended information
Generator principle
The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then through the The speed machine increases the speed of rotation to prompt the generator to generate electricity. According to current wind turbine technology, power generation can start at a breeze speed of about three meters per second (the level of breeze).
Due to the unstable air volume, the wind turbine outputs alternating current of 13 to 25V, which must be rectified by the charger, and then the battery is charged, so that the electrical energy generated by the wind turbine is converted into chemical energy. . Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220V mains power to ensure stable use.
The electric energy generated by each rotation of the wind energy generator is also different. For example, the most common 2MW direct-drive wind energy generator has sufficient and stable wind energy. The motor can generate 2,000 degrees of electricity every 60 minutes.
It takes 3.5 seconds for the fan blades to rotate once, and 60 minutes is 3600 seconds. Therefore, the amount of electricity generated by the generator per second is 0.56 degrees, so the amount of electricity generated by the wind energy generator fan for each revolution is The power generated is 0.56×3.5 seconds, which is 1.94 kilowatt-hours of electricity.
Extended informationBecause the wind volume is unstable, the wind turbine outputs alternating current of 13~25V, which must be rectified by the charger and then charge the battery to make the wind power The electrical energy produced by the generator is converted into chemical energy. Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220V mains power to ensure stable use.
Mechanical connection and power transmission: The horizontal axis fan blades are connected to the universal elastic coupling through the gearbox and its high-speed shaft to transmit the torque to the drive shaft of the generator. This coupling should be Has good damping and vibration absorption properties.
Performed by absorbing the appropriate amount of radial, axial and certain angular deflections, and the coupling can prevent the overload of the mechanical device. The other type is the direct-drive fan blades that are directly connected to the motor without passing through the gearbox. Type of fan motor
Baidu Encyclopedia - Wind Turbine